Climatic hazard assessment in selected underground hard coal mines in Vietnam

Abstrakt

The article discusses the possibility of improving the
microclimate in underground hard coal mines in Vietnam. Vietnamese
underground mines are shallow mines which extract coal deposits
accumulated up to 500 m below ground. According to the current
Vietnamese laws, coal deposits can be mined if air temperature does not
exceed 30oC, although this rule is not always observed, especially during
summer. This article analyses the impact of air parameters on the climatic
conditions in headings and the use of the air temperature reduction method
in selected underground mines in Vietnam.